I have configured my Cisco wireless network to use Windows AD username and machine authentication. When I use my laptop with a Cisco AIR-CB21AG-E-K9 cardbus adapter I can see in the Cisco ACS 4.1 passed authentication logs that both the machine and my username have authenticated against Windows active directory.
When I login with a laptop with an Intel wireless adapter I can only see the machine hostname authenticating. I am also able to login with a local account on the laptop.
From documentation I believe the Wireless client should provide both machine and username authentication.
There is probably a configuration error on the WLC or ACS.